1998 HONDA CR-V Tension

No DTC
CAUTION: Whenever the ignition switch is ON {lll, ol
has been tulned OFF for less than three minutes, bs
careful not to bump the SRS unit; the airbags could
accidenially deploy and cause damago or iniuries.
UNDER-DASHFUSE/RELAY BOX
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SBS MAIN HARNESS18P CONNECTOR
)(cont'd)(B)
To page 24-48
Ch€ck the fuse:1. Turn the ignition switch OFF.2. Check for blown No. 13 ('15 A) fuse in the under-dashIuse/relay box.
b th€ fuse OK?
YEs NO
1A) To page 24 48
Replace the fuse. Turn the ignition switch ON {ll), and check
that the luse doesn't blow.
ls the fuse OK?
YESNO
The probl€m has disappeared. Ted{rive the v€hicle and
see Troubfeshooting Intermittont Failurea on page 21-28.
Check Ior short to ground between tho underdash tuse/
relay box and the SRS unil.1. Turn the ignition switch OFF.2. Disconnect the battery negative cable, then disconnect
the positive cable, and wait for three min utes.
3. Disconnect the driver's and front passenger's airbag con-
nectors, and disconnect the seat belt tensioner connectors(see page 24-23).4. Disconnect the SRS main harness l8P connector from
the sRs unit.5. Check resistance between the No. 7 terminal of the SRS
main harness 18P connector and ground.
There should be 1 M0 or more.
ls the .esistanco as soecified?
YESNO
Faulty SRS unit; replace lhe SRS unit {see page 24-951.
No. 13 (r5 Al FUSE
SRS MAIN HARNESS 18P CONNECTOR
24-47
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Troubleshooting
No DTC (cont'dl
ltofi page 24-47(B)
Chock for short to ground in the SRS main harne3s:1. Disconnect the SRS main harness 2P connector lrom theunder dash fuse/relay box.2. Check resrstance betwoen the No.7 terminal of the SRSmain harness 18P connector and ground. There shouldbe 1.0 M0 or more.
k the ro3irtancc as specifi€d?
YESNO
Short to ground in tho under-da3h lus6/rolay box;replace the under-dash fuse/relav box,
Short to glound in the SRS m.in hernoss; roplace tho SRSmain hatnei3.FUSE/RELAY BOX
Check tor an op€n in the SRS main harness:1. Turn the ignition switch OFF.2. Disconnect the battery negative cable, then disconnectthe positive cable. and wait for th ree minutes.3. Disconnect the driver's and front passenge/s airbag con,nectors, and disconnect the seat belt tension€r connectors{see page 24-23}.4. Disconnect the SRS main harness 18P connector fromthe SRS unit.5. Reconnect the battery positive cable, then reconnect thenegative cable.6. Connect a voltmeter between the No. 7 terminal oI theSRS main harness 18P connector and ground.7. Turn the ignition switch ON (lll , and measure voltage.
Poor conlact .t the SRS main harness l8P connesto.:check th6 connector,. It the connector is OK, substitute a known-good SRSunit, and rgcheck.. It lhe problem ii still p.es6nt, rcplace the SRS mlinhamess.
(A) From page 24-47
To page 24-49
SRS MAIN HARNESS 18P CONNECTOR
SRS MAIN HARNESS 18P CONNECTOR
J3
24-48
-a
1
J
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SRS MAIN HARNESS18P CONNECTOR
From page 24 50
Check for an opon in the cabl€ re€l (cont'd):
5. Reconnect the batterv positive cable, then reconnect thenegative cable,6. Erase the DTC memory (see page 24-28).7. Read the DTC (see page 24-2d.
ls DTC 1-1 or DTC 1-2 indic.ted?
YESNO
Open or increased resistance in the cable reel; replacethe cable reel (see paqe 24-91J.
Check for an open in the SRS main harne$:1. Disconnect the battery negative cable, then disconnectthe positive cable, and wait lor three minutes.2- Disconnect the front passenger's airbag connector landdisconnect both seat belt tensioner connectors),3, Disconnect the SRS main harness 18P connector fromthe SRS unit. Do not disconnect the special tool 12 O)from the SRS main harness.4. Check resistance between terminals No. 1 and No. 13 ofthe SRS main harness 18P connector.There should be aoorox.2.0 3.0 0.
ls the rcsistanc€ as soecified?
NOYES
Poor contact at the SRS main harnoss 18P conn€ctor;check the connector.. It the connecior is OK, substitute a lnown-good SRSunit, and recheck..lf the problem is still present, .eplace the SRS mainharness,
Opon or inc.oased rc3istance in the SRS main harnoss;roDlace tho ha]nss.3.
24-51
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From page 24-52
Chock for a shon in th6 cablo recl {cont'dl:5. Reconnect the battery oositive cable, then reconnect thanegative cable.6. Ersse the DTC memory (see page 24-28).7. Read the DTC (see page 24-26l'.
ls DTC 'l-3 indic{tod?
NOYES
Short in the csble reel; replace tha cabls rcol lsao paga
24-911.
Chock for a short in th€ SRS main ha.nors:1. Disconnect the battery negative cable, th€n disconnectthe Dositive cable, and wait for three minutes.2. Disconn€ct tho lront passengor's airbag connector (and
disconnect both seat belt tensioner connectors).3. Disconnect the SRS main harness 18P connector fromthe SRS {rnit. Do not disconnect the special tool (2 0)from the SRS main harness 2P connector.4. Check the resistance between terminals No. 1 and No. 13of SRS main harness 18P connector.There should be aDorox. 2.0 - 3.0 0.
b th€ rsciitlnce a3 sDecifi6d?
NOYES
Faulty SRS unit; rspl.c. th6 SRS unit l.co p.sc 2a-95,,
Shori in the SRS m.in h.rn.e!; ropbce the SRS main htr-ne33.
SRS UNIT
)SRS MAIN HABNESS18P CONNECTOR
c806
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(., Lzl 3 ll63
1518
Wire side ottormrnats
24-53
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Ftom page24-54
Check for 6 short power in the cable r6el {cont'd):5. Reconnect the battery positive cable, then reconnect thenegative cable.6. Erase the DTC memory (see page 24-28).7. Read the DTC (see page 24-261.
b DTC 1-4 indicarodz
YESNO
Short to power in lhe cablo roel; replace th€ cabl€ ieel{see pago 24-91).
Check tor a short to power in th. SRS main harn$s:1. Disconnect the battery negative cable, then disconnectthe positive cable, and wait for three minutes.2. Disconnect the front passenger's airbag connector {anddisconnect both seat belt tensioner connectors).3. Rernove the special tool (2 O) from the SRS main harness2P connector.4. Disconnect the SRS main harness 18P connector fromthe SRS unit.5. Beconnect the batterv positive cable, then reconnect thenegative cable.6. Connect a voltmeter between the No. 1 {+) terminal olthe SRS main harness 18P connector and body ground.7. Turn the ignition switch ON (ll), and measure voltage.There should be 0.5 V or less.8. Turn the ignition switch OFF.9. Connect a voitmeter between the No. 13 {+i terminal ofthe SRS main harness 18P connector and body ground.10.Turn the ignition switch ON lll), and measure voltage.There should be 0.5 V or less.
Are voltages as specified?
YESNO
Faulty SRS unit; replaco th€ SRS unit lsoo pas6 24-95).
Short to power in th€ SRS main hamoss; roplece the SRSmain haanass.
SRS MAIN HARNESS18P CONNECTOR
24-55
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SRS MAIN HARNESS18P CONNECTOR
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From page 24 56
Check{or a short to ground in the cable reel (cont'd):
5. Reconnect the batterv positive cable, then reconnect thenegative cable.6. Erase lhe DTC memoty lsee page 24-28).7. Read the DTC lsee page 24 26).
ls OTC 1-5 indicated?
YESNO
Short lo ground in the cable reel; replace the cable reel{see oaoe 2,1-91}.
Check for a short to ground in the SRS main harness:'1. Disconnect the battery negative cable, the disconnect thepositive cable, and wait for three minutes.2. Disconnect the tront passenger's airbag 2P connector(6nd disconnect both seat belt tensioner connectors).3. Remove the special tool 12 {))from the SRS main harness2P connector.4- Disconnect the SRS main harness 18P connector fromthe sRs unit.5. Check resistance between the No. l terminal o{theSRSmain harness 18P connector and ground, and betweenthe No. 13 terminal of the SRS main harness 18P connec-tor and ground.There should be I M0 or more.
ls lhe resistance as soecitiod?
NOYES
Faulw SRS unit reDlace the SRS unit lsee paqe 24-951.
Short to ground in the SRS main harness; replace the SRSmain ham€ss,
24-57
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)
From page 24 58
Check fo. an oD6n in the SRS main harness:1. Disconnect the battery negative cable, then disconnectthe positive cable, and wait for three minutes.2. Disconnectthe driver's airbag 2P connector land disconnectboth seat belt tensioner connectors) (see page 24 23).3. Disconnect the SRS main harness 18P connector fromthe SRS unit. Do not disconnect the soecial tool (2 Oifrom the SRS main harness.4. Check resistance between the No. 10 terminal and No. 14terminal of the SRS main harness 18P connector. Thereshould be aoorox. 2.0 - 3.0 g.
ls the .osistanc€ as soecified?
NOYES
Poor contacl ai the SRS main harness 18P connecloricheck lhe connector,.lf the conneclor is OK, substitute a known-good SRSunit, and recheck..lf the problem is still present, replace the SRS mainhatnesli,
Open or increased resistance in the SRS main harness;replace the harness.
UNITsRs
18P CONNECTOR
24-59
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SRS MAIN HARNESS18P CONNECTOR
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From page 24 60
Ch6ck tor a short to another wire or decreasod aGsistance inlh€ SRS main harness:1. Disconnect the battery negative cable, then disconnectthe positive cable, and wait for three minutes.2. Disconnect the driver's airbag 2P connector (and disconnectboth seat belt tensioner connectors).3. Disconnect the SRS main harness '18P connector fromthe SRS unit. Do not disconnect the special tool (2 O).4. Check resistance between the No. 10 terminal and No. 14terminal of the SRS main harness 18P connector. Thereshould be aoorox. 2.0 - 3.0 0.
ls the rosistanc6 as specified?
YESNO
Faultv SRS unit; replace lhe SRS unit lsee page 24-95).
Short to anothor wire or decre.sed re3i3t.nce in the SRSmain harness; replac€ the SRS main harn*s.
24-61
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